To measure the spring constant of a certain spring, a student put a mass of 700 g at the bottom of the spring, and the spring stretches by 35.0 cm. What is the spring constant?

When a spring is extended by 50 mm with the application of a force of 10N, the spring constant is 200N/m. What is the magnitude of the force required to extend the same spring by 80 mm? (in units of N)

A spring has a force constant of 8.1 N/m and a rest length of 0.30 m. How much force must be applied to stretch the spring to a length of 0.45 m?

A 0.46 kg block is hung from and stretches a spring that is attached to the ceiling. A second block is attached to the first one, and the amount that the spring stretches from its unstretched length triples. What is the mass of the second block?

A person who weighs 760 N steps onto a spring scale in the bathroom, and the spring compresses by 0.635 cm. (a) What is the spring constant? (b) What is the weight of another person who compresses the spring by 0.314 cm?

What stiffness is required in a spring if it is to Launch a 12 kg Mass 30 m into the air after being compressed by 0.25 m

An ornament of mass 40.6 g is attached to a vertical ideal spring with a force constant (spring constant) of 45.6 N/m. The ornament is then lowered very slowly until the spring stops stretching. How much does the spring stretch?

Question in pic.

A 5.75-kg mass stretches a vertical spring 0.5 m. If the spring is stretched an additional 1 m and released, how long does it take to reach the (new) equilibrium position again? (How do I find the amount of time?)

An engineer is designing a spring to be placed at the bottom of an elevator shaft. If the elevator cable should break when the elevator is at a height of 103m above the top of the spring, calculate the value that the spring stiffness constant should have so that passengers undergo an acceleration of no more than 3.9g when brought to rest. Let 924kg be the total mass of the elevator and passengers.